Dry battery.



rrnn errants narrar carica.

CLAUDE D. ENOCHS, OF LA GROSSE, WISCONSIN.

DRY BATTERY.

Specification of Letters Patent.

Patented April 6, 1909.

Application led May 26, 1906. Serial No, 318,894.

T o all whom it may con-cern:

Be it known that I, CHAUDE D. ENocHs, a citizen of the United States, residing at La Crosse, in the county of La Crosse and State of lVisconsin, have invented a new and useful Dry Battery, of which the' following is a specification.

My invention relates to an improved dry battery and is 'a step forward in the art in thatits construction is less expensive than those heretofore in use and its efficiency of operation is increased.

In the accompanying drawings forming part of this specification, Figurel is a vertical central section of my invention; Fig.' 2 is a perspective view ofA tlie positive element, and Fig. 3 is a detail sectional view of the wall of the cell.

This invention comprises a positive elec.

trode or element A, made of a thin, curved plate of zinc and provided vwith the customary binding post 2. The substantially circular ends of the late overlap an eighth of an inch (more or lless), although they need not overlap and the plate may be truly cir-v `right side up so as to leave a film on its wall anda thick settlement of pitch on its bottom: The zinc electrode is placed against the inner wall of the receptacle, thus uniting with it and reinforcing its strength. A lining C and `up D (made of pulp paper or any other desirable separating medium), which have previously been nioistened in an electrolytic solution of ammonia chlorid or other suitable substance, are inserted in the cell, together' with a negative electrode E, made of carbon or other desired material. This negative electrode mayb(- of any preferred form and is provided with a binding post 3 on its upper end. An appropriate interior compound F, comprising a mixture of carbon and manganese dioxid, moistened with a solution of ammonia chlorid and Zinc chlorid or any other suitable mixture or active material is packed in the cell by any desired means.

The upper end of the pulp paper lining is folded over the mixture and around the carbon electrode and the cell is finally sealed at G by means of coal tar pitch or any other preferred insulating material, which is impervious to moisture, filled in the upper end of the receptacle, as illustrated, leaving the terminals of the zinc and carbon electrodes exposed.

The waterproofed receptacle retains the moisture `\after the zinc is entirely eaten away and rotects the cell against external moisture, s ort circuiting and deterioration.

ln consequence, this eveil requires the use of a less amount of zinc than cells in use prior to my invention, saves the Zinc, which has heretofore been wasted-particularly opposite the sand wax and the disk commonly vused in the bottom of cellsdand does not allow -any moisture to escape as with other vconstructions now in use.

. In accordance with the have described the princip e of operation of my invention, together with the construction which I now iconsider to represent the best embodiment thereof, but l desire\to atent statutes, I

have it understood that the device shown is only illustrative and that the invention can be carried out by other means and the parts thereof applied in other ways than above Set forth.

Having described my invention, what .l claim as new and desire .to protect by Letters Patent, is :-A

A huilt up battery cell comprising a thin shell having an inner coat of water proof material forming a film on its inner wai and a thick settlement on its bottom, an electrode 1n the form -of a thm late placed against and united with said siell'by said coat and reinforcing its strength, an inner and. opposite electrode, a h ninv placed against the inner surface of said pate, and

an electrolyte packed Within said lining, the In testimony whereof 1 have signed my upper portion of said lining being folded name `to this specification in the presence of ove;` said compound and around the up er two subscribing Witnesses.

end of the inner electrode and said eee- CLAUDE D; ENOCHS. 5 trodes being sealed in said cell by said water Witnesses?v v v l Y a 4 proof material which covers the folded end C. H, Moli\'I'1\Ili1s,.y L

of said lining.4 H. D. WARREN. 

